Compositions containing highly viscous polyisocyanates

US6627726B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Bernd Bruchmann · Ludwigshafen, DE
• Gunter Mohrhardt · Speyer, DE
• Hans Renz · Meckenheim, DE
• Ulrich Poth · Munster, DE
• Hubert Baumgart · Hachenburg, DE
• Simone Bitter · Senden, DE

Key dates

• Filing date: Dec 29, 2000
• Grant date: Sep 30, 2003
• Expiry date: Dec 29, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/6254
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention provides a composition for producing surface coatings combining improved hardness, scratch resistance and acid resistance with good reflow behavior, a process for preparing such a surface coating, and for the use of polyisocyanatoisocyanurates having a functionality of more than 3.5 and a viscosity at 23° C. of more than 3500 to produce surface coatings.